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Finding the Fourth Proportional to 7,885.68, 11,828.06 and 2,954.91

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Solution

The fourth proportional to 7,885.68, 11,828.06 and 2,954.91 is: 4,432.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.68 : 11,828.06 = 2,954.91 : x
  2. Step 2: Convert to fraction form
    7,885.68/11,828.06 = 2,954.91/x
  3. Step 3: Cross multiply
    7,885.68x = 11,828.06 × 2,954.91
  4. Step 4: Simplify right side
    7,885.68x = 34,950,778.86
  5. Step 5: Solve for x
    x = 34,950,778.86/7,885.68
  6. Step 6: Final answer
    x = 4,432.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.